Update Rspec to 3.0 version, configure Rspec and finish Unit tests
Update Capybara and write Functional tests
Add next gems: database_cleaner, faker and maunchy. Edit roles: now we have 'Administrator', 'Content Moderator' and 'Catalog Moderator' roles. Add specs for testing Content Moderator access to pages.
Add Roles and Users factories, also finished other specs refactoring